Senior Developer, Rust

Senior Developer, Rust 1Password is growing faster than ever. We’ve surpassed $400M in ARR and we’re continuing to accelerate, earning a spot on the Forbes Cloud 100 for four years in a row and teaming up with iconic partners like Oracle Red Bull Racing and the Utah Mammoth. About 1Password At 1Password, we’re building the foundation for a safe, productive digital future. Our mission is to unleash employee productivity without compromising security by ensuring every identity is authentic, every application sign-in is secure, and every device is trusted. We innovated the market-leading enterprise password manager and pioneered Extended Access Management, a new cybersecurity category built for the way people and AI agents work today. As one of the most loved brands in cybersecurity, we take a human-centric approach in everything from product strategy to user experience. Over 180,000 businesses, from Fortune 100 leaders to the world’s most innovative AI companies, trust 1Password to help their teams securely adopt the SaaS and AI tools they need to do their best work. If you're excited about the opportunity to contribute to the digital safety of millions, to work alongside a team of curious, driven individuals, and to solve hard problems in a fast-paced, dynamic environment, then we want to hear from you. Come join us and help shape a safer, simpler digital future. As a Senior Rust Engineer at 1Password, you’ll help build the core systems behind our digital identity wallet, enabling safer, more privacy-preserving ways for people to prove who they are. You’ll own a shared Rust foundation that powers credential security and interoperability across our apps. Your work will directly shape the future of digital identity at 1Password. This role establishes core abstractions used across the entire product. The work requires judgment, care, and an ability to think long-term, since early decisions shape security, developer experience, and future flexibility. We are looking for someone who can navigate these tradeoffs thoughtfully and collaboratively. This is a remote opportunity within Canada and the US. What we're looking for: - At least 5 years of professional software development experience, including strong production experience with Rust. - Experience owning non-trivial libraries, shared infrastructure, or long-lived codebases. - Comfort working in security-sensitive areas where correctness and careful review matter. - Experience exposing Rust code via FFI to other languages such as Swift, Kotlin, or JavaScript. - Ability to collaborate effectively with cross-functional partners and communicate technical ideas clearly. - A mindset oriented toward learning, mentorship, and improving systems over time. Bonus points for: - Familiarity with cryptography fundamentals such as public and private key cryptography, signatures, hashing, and secure key handling. - Experience building shared core libraries used across multiple platforms. - Exposure to identity, credentials, authentication systems, or security-focused engineering. - Background in applied cryptography or security engineering. What you can expect: - Design, build, and maintain a shared Rust core that supports Verifiable Digital Credential storage, parsing, and validation, and cryptographic operations such as signing, verification, and key binding - Define stable, well-documented APIs for consumption by client applications through FFI and language bindings. - Partner closely with mobile, desktop, browser, and security teams to ensure correctness, performance, and usability. - Make thoughtful architectural decisions that balance security, maintainability, and future evolution. - Set and uphold high standards for testing, correctness, and long-term ownership. - Contribute to technical planning, estimation, and prioritization. - Participate in on-call rotations to support reliable production systems. We know great candidates come from many backgrounds and ca ... (truncated, view full listing at source)